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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 10: GIẢI CÁC PTRÌNH SAU $\frac{|5x-2|}{x+3}$=|x-2|

Toán Lớp 10: GIẢI CÁC PTRÌNH SAU
$\frac{|5x-2|}{x+3}$=|x-2|

Comments ( 1 )

  1. Giải đáp: X1=2-2√2, X2=-3+17, X3=2+2√2
    Lời giải và giải thích chi tiết:
    |5x-2| x+3 =|x-2|,x -3
    |5x – 2| = (x + 3)|x – 2|
    |5x-2|-(x+3)*|x-2|=0
    |5x-2|+(-x-3)*|x-2|=0
    5x – 2 + (- x – 3)(x – 2) = 0, 5x – 2 >= 0 , x – 2 >= 0
    – (5x – 2) + (- x – 3)(- (x – 2)) = 0 5x – 2 < 0 , x – 2 < 0
    5x – 2 + (- x – 3)(- (x – 2)) = 0, 5x – 2 >= 0 , x – 2 < 0
    – (5x – 2) + (- x – 3)(x – 2) = 0, 5x – 2 < 0, x – 2 >= 0

    toan-lop-10-giai-cac-ptrinh-sau-frac-5-2-3-2

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222-9+11+12:2*14+14 = ? ( )

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